118297979 has 2 divisors, whose sum is σ = 118297980. Its totient is φ = 118297978.

The previous prime is 118297973. The next prime is 118298003. The reversal of 118297979 is 979792811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118297979 - 2²⁰ = 117249403 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118297979.

It is not a weakly prime, because it can be changed into another prime (118297973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59148989 + 59148990.

It is an arithmetic number, because the mean of its divisors is an integer number (59148990).

Almost surely, 2^118297979 is an apocalyptic number.

118297979 is a deficient number, since it is larger than the sum of its proper divisors (1).

118297979 is an equidigital number, since it uses as much as digits as its factorization.

118297979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 53.

The square root of 118297979 is about 10876.4874385070. The cubic root of 118297979 is about 490.8993326915.

The spelling of 118297979 in words is "one hundred eighteen million, two hundred ninety-seven thousand, nine hundred seventy-nine".